Mechanical drawing. Elementary and advanced (1910)
Reid, John S. (John Simpson), 1856- · New York, J. Wiley & sons; [etc, etc.] · leaf 65
Fig. 85. Figb %V. To Describe an Interior Epicycloid.—Let the large circle X be the generator and the small circleY the director. Divide circle Y into any number of equalparts, as B, H, /, /, etc. Draw radial lines and make HC,ID, JE, KFy etc., each equal to the radius of the generatorX. With…